Railway draft-rigging



J. F. OCONNOR.

RAILWAY DRAFT RIGGING.

APPLlcAnoN FILED MAR.15. 1920.

l x lfllurlkl Patented Spt. 20, 1921.

2 SHEETS-SHEET 1 J. F. OCONNOH.

RAILWAYDRAFT RIGGLNG.

APPLlCATiON FILED MAR. l5. 1920.

1,391,068. PatentedSept. 20, 1921.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

JOHN F. OCONNOR, OF CHICAGO, ILLINOIS, ASSIGNOR TO WILLIAM H. MINER, 0F CHAZY, NEW YORK.

RAILWAY DRAFT-RIGGING.

Application filed. March 15, 1920.

To all whom t may concern:

Be it known that I, JoHN F. OCoNNo-R, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Railway Draft- Riggings, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

This invention relates to improvements in railway draft riggings.

The object of the invention is to provide a high capacity and efficient draft rigging for railway cars wherein the usual cheek plates are eliminated and the spring resi stances are disposed outside of the sills to thereby utilize for the friction elements proper the usual space allotted between the draft sills for the entire gear. Y

In .the drawing forming a part of this specification, Figure l is a part horizontal sectional view, part plan of a Aportion of a railway draft rigging showing my improvements employed in connection therewith. Fig. 2 is a vertical longitudinally extending section correspondin substantially to the line 2 2 of Fig. 1. nd Fig. 3 is a detailed perspective of one of the wedges employed in my construction. l

In said drawing, 10-10 denote channel shaped center or draft sills of a railway car preferably reinforced byplates 11--11 which are riveted thereto on the outer sides thereof. A portion of a draw bar shank is indicated at 12 to whichis secured a yoke 13 of usual form.

In carrying out my invention, I employ two heavy keys A and B which are extended laterally through suitable slots in the sills 10 and plates 11 as clearly indicated in Fig. 1. 'I he slots for the keys A and B are made such that the keys are prevented from longitudinal movement, that is, the keys A and B are made stationary. On each side of the center sills, the outer ends of the keys A and B sustain heavy longitudinally extending plates B which act as abutments for twin sets of laterally extending springs Each plate B is slotted at its ends so as to fit over the keys A and'B and the plates B are prevented from outward movement with respect to the keys A and B by small-retaining keys 14-14.

The inner ends of the springs C bear Specification of Letters Patent.

Patented Sept. 20, 1921.

Serial No. 365,757.

against longitudinally extending plates D also disposed on the outer sides of the draft sills. Said plates D, or spring followers, are suitably slotted at their ends so as to be supported by the keys A and B while at the same time permitting the plates to move laterally back and forth in the operation of the draft rigging.

Within the sills are provided front and rear wedges E and F; laterally movable friction shoes G-Cr; and pressure transmitting blocks H-I-I.

Eachwedge E andF is provided with oppositely inclined wedge faces 15-15 at its inner end and the wedges are also centrally horizontally slotted as yindicated at 16 to slide on the keys A and B. The friction shoes G-G are provided with beveled ends as indicated at 17-17 to cooperate with the faces 15 of the wedges E `and F.y In addition, the vshoes G are provided on their outer sides with longitudinally extending flat friction faces 18-18 which are adapted to eooperate with corresponding longitudinally extending flat friction faces 118 on the blocks H.

Each block H is provided with a pair of outwardly extending circular hollow bosses 19 which extend through corresponding openings 20 provided in the sills and plates 11. The blocks are furthermore provided at the top and bottom thereof with flanges .2l-21 adapted to act as guides and'centering vmeans for the yoke 13 when the parts return to normal position.

The operation is as follows: Assuming an inward or bufling movement of the draw bar, the rear wedge F will remain stationary on the key B and the front wedge E will be `moved rearwardly in unison with the draw bar. As the wedge E moves rearwardly, theshoes G-G will be separated laterally and will also have some longitudinal movement imparted thereto. As the shoes G are spread laterally, the blocks H are similarly moved and their motion is in turn communicated to the plates or followers D so that the springs C are compressed against the abutments B. From the preceding, it will be seen that friction is generated between the wedges and friction shoes and also between the shoes and the blocks H. With the construction shown, all of the parts may be easily assembled or disassembledand it will be noted that no cheek plates or other stop castings are required so that the construction is an economical one and very high capacity is obtained because of thefact that I am enabled to utilize four springs.

I claim:

1. In a railway draft rigging; the combination with draft sills; of spring resistances on the outer sides of said sills; front and rear stationary members extending laterally outward from each sill; a member .extending longitudinally of the sill sustained on the outer ends of each set of stationary members, said longitudinally extending members forming abutments for the outer ends of the spring resistances; and means, adapted to be operated upon movement of the dra-w bar; including laterally movable elements for compressing said spring resistances.

2. In a railway draft rigging, the combination with draft sills; of front and rear stationary keys extended through said sills and projecting laterally outwardly thereof; longitudinally extending plates detachably supported on the outer ends of said keys, one on each side of the draft sills; spring resistances on 4each side of the draft sills and having their outer ends bearing against said plates; and means, adapted to be actuated upon movement of the draw bar, for compressing said springs outwardly against said plates.

3. In a railway draft rigging; the combination with 4draft sills; of front and rear stationary keys extended through and beyond said sills; of longitudinally extending plates mounted on the outer ends of said keys; laterally extending springs on the outer sides of said sills and having their' outer ends bearing against said plates; longitudinally extending plates on the outer sides of said sills against which the inner ends of said springs bear; -friction elements including laterally movable friction shoes adapted to be actuated upon movement of the draw bar; and pressure transmitting means between. the said shoes and the inner set of longitudinally extending plates,

.4. In a railway draft rigging, the combination with draft sills; of front and rear fixed keys extended outwardly beyond the sills; front and rear wedges, the front wedge being movable rearwardly relative tothe front key and the rear wedge movable forwardly relative to the rear key, only; laterally movable friction shoes having end faces coperable with said wedges; pressure transmitting means adapted to be laterally actuated by said shoes and extending through the sills; longitudinally extending plates outside of thel sills coperable with said pressure transmitting means; fixed spring abut-- ments sustained bythe outer ends of said keys; and laterally compressible springs interposed between said spring abutments and the said plates.

In witness that I claim the foregoing I have hereunto subscribed my name this 21st day of Feb., 1920.y

' Y YJOI-IN F. OCONNOR. Witness:

CARRIE GAILING. i 

